package com.atguigu.mapper;

import com.atguigu.entity.UcenterMember;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;

/**
@author cyt
@create 2020-05-15 11:50
*/
public interface UcenterMemberMapper extends BaseMapper<UcenterMember> {
    Integer selectRegisterCount(String day);
}